Router Installation Guide

Chapter 3 Installing the Router
Installing a Flash Memory Card
3-17
Cisco XR 12404 Router Installation Guide
OL-13830-02
PRP Auxiliary Port Signals
The auxiliary port on the PRP is a DTE, RJ-45 plug for connecting a modem or
other DCE device (such as a CSU/DSU or another router) to the router. The port
is labeled Aux, as shown in Figure 3-8. The asynchronous auxiliary port supports
hardware flow control and modem control. Table 3-2 lists the signals used on the
auxiliary port.
Installing a Flash Memory Card
By default, a Flash memory card containing a valid Cisco IOS XR software image
is inserted in bottom slot, PCMCIA slot 0 before the router is shipped.
Note PCMCIA slot 0 is the bottom slot and slot 1 is the top slot. Both Flash memory
card slots on each RP can be used at the same time.
Table 3-2 PRP Auxiliary Port Signals
Auxiliary Port Pin Signal Input/Output Description
1 RTS Output Request To Send
2 DTR Output Data Terminal Ready
3 TxD Output Transmit Data
4 GND — Signal Ground
5 GND — Signal Ground
6 RxD Input Receive Data
7 DSR Input Data Set Ready
8CTSInputClear To Send
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